Myford 7 Series Inspection Sheet

TEST

1

PERMISSABLE ERROR

TEST

PERMISSABLE ERROR

____________

___________

ACTUAL ERROR

ACTUAL ERROR

Max. Reading

5

along length of Bed

Total Indicator Reading at end of 6” Test Bar: 0 to 0.0006” At end of Spindle Nose:

0.0005” In 48 in. ____________

0 to 0.0003” ___________ 0.000_

0.000_

TAILSTOCK WAY ALIGNMENT

(Use ‘Virgin’ Shear for reference, dependent on Narrow or Wide Guide saddle) 2

0.000_ SPINDLE TAPER RUNOUT

Total

6

Indicator Reading 0 to 0.0004”

High at end of 6” Test Bar rising towards 0 to 0.0005”

____________

___________ 0.000_

0,000_ SPINDLE CENTER RUNOUT

3

HEADSTOCK ALIGNMENT - VERTICAL

Total

7

Indicator

At end of 6” Test Bar 0 to 0.0006”

Reading 0 to 0.0003”

Toward tool pressure

____________

__________ 0.000_ 0.000_ SPINDLENOSERUNOUT

HEADSTOCKALIGNMENTHORIZONTAL

4

8

Total Indicator Reading on Face of

Forward end of Spindleatwhen fully extended

Spindle

__________

0 to 0.0006”

0 to 0.0003 ___________

CAM ACTION OF SPINDLE

0.000

0.000_

TAILSTOCK SPINDLE ALIGNMENT HORIZONTAL

TEST

9

TEST

PERMISSABLE ERROR

PERMISSABL E ERROR

____________

___________

ACTUAL ERROR

ACTUAL ERROR

13

High at end of Spindle when fully extended

Maximum 0.0003”

0 to 0.0005” ____________ ___________ 0.000_

TAILSTOCK SPINDLE ALIGNMENT

0.000_

VERTICAL LEADSCREW CAM ACTION 10

14

End of 6” Test Bar 0 to 0.0008” toward tool pressure

To face hollow or concave only on 7” 0 to 0.0005”

____________

___________ 0.000_ TAILSTOCK TAPER ALIGNMENT

0,000_

CROSS SLIDE ALIGNMENT

High end of 6” or 12” Test Bar

15

HORIZONTAL

11

On diameter 0 to 0.005”

0 to 0.0005” toward tool pressure

On face at normal diameter

____________

__________

0 to 0.001”

0.000_ TAILSTOCK TAPER ALIGNMENT

0.000_

FACE PLATE RUNOUT

0.000_

VERTICAL 12

16

High at Tailstock 0 to 0.0008” ___________

Max. deviation from true roundness 0.0001”

0.000_ 12”

Must turn cylindrical 6” length of workpiece 0 to 0.0008”

VERTICAL ALIGMENT OF HEAD AND TAIL CENTERS

__________ WORK MOUNTED IN CHUCK

0.000_ 0.000_

TEST

17

12”

PERMISSABLE ERROR

PERMISSABLE ERROR

____________

___________

ACTUAL ERROR

ACTUAL ERROR

Must turn cylindrical on a 12 in. length of work piece

21

Maximum deviation from reference 0.003”

.0004”

_________

____________

0.000_ 0.000_ 0.000_

.

_

WORK MOUNTED IN CENTERS

18

TEST

FRONT WAY WIDTH MEASUREMENT

(Every 3” along the bed length, use far right of the way as reference)

+/- 0.001”

22

0.000_ 0.000_ 0.000_

Maximum deviation from reference 0.003” _________

0.00_

0.000_

LEAD SCREW LEAD PER FT

0.000_ 0.000_

BACK LASH ON CROSS FEED SCREW

REAR WAY WIDTH MEASUREMENT

0.000_

(Every 3” along the bed length, use far right of the way as reference)

0.000_ 0.000_

ax mum deviation from reference 0.003”

0.004” 0.00_

_________

____________

0.000_ ON COMPOUND REST SCREW

0.00_

20

0.000_

0.004”

Indicator Reading

FRONT TO REAR WAY OVERAL WIDTH

0.000_

MEASUREMENT

0.000_

(Every 3” along the bed length, use far right of the way as reference)

0.000_

24

Maximum deviation from reference

0.001”

0.000_

0.005”

___________

__________

INDEXING OF SQUARE TURRET

Front / Rear

0.00_ 0.00_

0.00_

0.00_ 0.00_ 0.00_ 0.00_ FRONT & REAR WAY OVERAL

0.00_ 0.00_

THICKNESS MEASUREMENT

0.00_ 0.00_

(Every 3” along the bed length, use far right of the way as reference)

0.00_ 0.00_